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The S.P.C.A. 40 T commercial airplane (French) : an all-metal cantilever monoplane (1931)
NASA Technical Reports Server (NTRS) · leaf 5
N.A.C.A. Aircraft Circular No.143 Figs.2,3,4,5 Pigs.2,3,4 Views of the S.P.C.A. 40 T airplane. Pig.4NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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